Chicago to Colorado Springs

What the Data Says About ORD to COS

The Chicago to Colorado Springs corridor (ORD → COS) covers roughly 911 miles and is served by 10 carriers, based on Bureau of Transportation Statistics reporting. Across 4,234 flights in the dataset, this route posts a 77.5% on-time rate with an average delay of 65.1 minutes when flights run late. Over the most recent 24 months of BTS data, 1,510 flights were recorded on this pairing — 11 cancelled (0.7%) and 7 diverted (0.5%). Those baseline metrics tell you what to expect before you book.

Having 10 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 4,234 total flights analyzed, the 77.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 65.1-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Apr 2025 posted the best performance on this corridor at 88% on-time, while Dec 2025 came in at 53% on-time — a 35-point gap between best and worst recent month. For travelers evaluating the ORD to COS route, the combination of a 77.5% on-time rate, 65.1-minute average delay, 0.7% recent cancellation rate, and 10 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.